Recombinant human Cystatin-9 protein
Cystatin 9, also known as CST9, is a member of the CRES (cystatin-related epididymal spermatogenic) subfamily. The CRES (cystatin-related epididymal spermatogenic) protein defines a newsubgroup in the family 2 cystatins of the cystatin superfamily. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. CST9 is expressed in heart, placenta, lung, liver, skeletal muscle and pancreas. CST9 is thought to play a role in hematopoietic differentiation or inflammation. It has also been shown to be upregulated by LPS in some cancer cell lines, such as promyelocytic leukemia (HL-60) and myelomonocytic leukemia. Recombinant human CST9 protein, fused to His-tag at N-terminus, was expressed in E. coli.
Product Specifications
Product Name Alternative
Cystatin 9, CLM
Expression System
E.coli
Antigen Species
Human
Tag
His-Tag
Applications
SDS-PAGE, Denatured
Concentration
1 mg/mL (determined by Bradford assay)
Purity
> 90% by SDS-PAGE
Molecular Weight
17.2 kDa (152aa)
Additionnal Information
References & Citations
Sun H., et al. (2003) Biochem Biophys Res Commun. 301:176-182.; ; Von Horsten H H., et al. (2007) J Biol Chem. 282:32912-32923.
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 0.4M urea, 10% glycerol
Scientific Category
Protease inhibitors
NCBI Accession Number
NP_001008693
Uniprot Accession Number
Q5W186
Species
Human
AA Sequence
WCSEEEMGG NNKIVQDPMF LATVEFALNT FNVQSKEEHA YRLLRVLSSW REDSMDRKWR GKMVFSMNLQ LRQTVCRKFE DDIDNCPFQE SLELNNVRQG ISFPQVHSCG CCMGCGVGTG AADKAIPRDK GK
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